Avoid error handler invocation
DibiRow: null time checking consistent with DibiResult
fix casting to float

Now, when sql returns float from (0,1) interval, e.g. '.842' - the decimal part is missing & it won't get cast to float.
This is fix for that situation
.gitattributes: ignoring some paths when downloading from github
readme.md: typos
updated test support files
typos
bridges: changed file structure